Watch Mariah Carey Horribly Lip-Sync During Her Concert

A few months ago, we showed you video of Mariah Carey’s unedited vocals at the Rockefeller Christmas show, and it was rough. Now a new video’s surfaced of the pop diva that’s just about as equally embarrassing. TMZ released a video of Carey lip-syncing along to her songs at a recent concert. While this isn’t that surprising, what is shocking is how horribly she does it. Take a look.